:root {
  color-scheme: light;
  --bg: #f6f7f4;
  --surface: #ffffff;
  --surface-soft: #eef4f0;
  --ink: #18201d;
  --muted: #5e6a65;
  --line: #d7dfda;
  --primary: #16735f;
  --primary-dark: #0d5445;
  --accent: #c55331;
  --warning: #9b6b12;
  --done: #0f7a48;
  --shadow: 0 18px 45px rgba(24, 32, 29, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(22, 115, 95, 0.11), transparent 34%),
    linear-gradient(315deg, rgba(197, 83, 49, 0.09), transparent 28%),
    var(--bg);
  color: var(--ink);
  font-family:
    Inter, "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", Meiryo,
    sans-serif;
}

button,
input,
select {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.app-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 42px;
}

.login-layout {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-panel {
  width: min(960px, 100%);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.login-main {
  padding: 34px;
  background:
    linear-gradient(135deg, rgba(22, 115, 95, 0.13), transparent 46%),
    var(--surface);
}

.product-mark {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: #173f36;
  color: #fff;
  font-size: 29px;
  font-weight: 900;
}

.login-main h1 {
  margin: 22px 0 10px;
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.06;
  letter-spacing: 0;
}

.login-main p {
  max-width: 640px;
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.login-card {
  padding: 28px;
  border-left: 1px solid var(--line);
  background: #fbfcfa;
}

.panel-title {
  margin: 0 0 18px;
  font-size: 1.1rem;
}

.field {
  display: grid;
  gap: 7px;
  margin-bottom: 14px;
}

.field label {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.field input,
.field select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  min-height: 46px;
  padding: 10px 12px;
  outline: none;
}

.field input:focus,
.field select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(22, 115, 95, 0.15);
}

.primary-btn,
.secondary-btn,
.danger-btn,
.icon-btn {
  min-height: 42px;
  border-radius: 8px;
  font-weight: 800;
  transition:
    transform 0.16s ease,
    box-shadow 0.16s ease,
    background 0.16s ease;
}

.primary-btn {
  width: 100%;
  color: #fff;
  background: var(--primary);
  box-shadow: 0 12px 28px rgba(22, 115, 95, 0.2);
}

.primary-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.secondary-btn {
  color: var(--primary-dark);
  background: #e1eee9;
  padding: 0 14px;
}

.compact-btn {
  width: auto;
  min-height: 38px;
  white-space: nowrap;
}

.danger-btn {
  color: #8a2513;
  background: #f7ddd5;
  padding: 0 12px;
}

.icon-btn {
  width: 42px;
  display: inline-grid;
  place-items: center;
  color: var(--primary-dark);
  background: #e1eee9;
  font-size: 1.15rem;
}

.login-help {
  margin-top: 18px;
  padding: 14px;
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.login-error,
.login-status,
.form-error {
  margin: 0 0 12px;
  font-weight: 800;
}

.login-error,
.form-error {
  color: #9b1c1c;
}

.login-status {
  color: #0a5935;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-symbol {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: #173f36;
  color: #fff;
  font-size: 24px;
  font-weight: 900;
}

.brand h1 {
  margin: 0;
  font-size: 1.4rem;
  letter-spacing: 0;
}

.brand p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.user-box {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--line);
}

.user-avatar {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--primary-dark);
  font-weight: 900;
}

.user-name {
  font-weight: 900;
}

.user-id {
  color: var(--muted);
  font-size: 0.82rem;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 18px 0;
}

.tab-btn {
  min-height: 58px;
  border-radius: 8px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  text-align: left;
  padding: 10px 14px;
}

.tab-btn[aria-selected="true"] {
  color: #fff;
  background: #173f36;
  border-color: #173f36;
}

.tab-main {
  display: block;
  font-size: 1rem;
  font-weight: 900;
}

.tab-sub {
  display: block;
  margin-top: 2px;
  color: currentColor;
  opacity: 0.78;
  font-size: 0.78rem;
}

.summary-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}

.summary-item {
  min-height: 80px;
  border-radius: 8px;
  padding: 13px 15px;
  background: var(--surface);
  border: 1px solid var(--line);
}

.summary-label {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.summary-value {
  display: block;
  margin-top: 4px;
  font-size: 1.35rem;
  font-weight: 950;
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 16px;
  align-items: start;
}

.task-list {
  display: grid;
  gap: 12px;
}

.task-row {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 14px;
  align-items: stretch;
  min-height: 146px;
  border-radius: 8px;
  padding: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: 0 8px 22px rgba(24, 32, 29, 0.06);
}

.check-button {
  width: 78px;
  min-height: 118px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: #f2f5f3;
  border: 2px solid #b9c8c1;
  color: #6a7972;
}

.check-button.is-done {
  color: #fff;
  background: var(--done);
  border-color: var(--done);
  box-shadow: 0 12px 25px rgba(15, 122, 72, 0.23);
}

.check-mark {
  font-size: 2.6rem;
  font-weight: 950;
  line-height: 1;
}

.task-content {
  min-width: 0;
  display: grid;
  gap: 12px;
}

.task-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.task-title {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.45;
}

.task-meta {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.86rem;
}

.status-pill {
  flex: 0 0 auto;
  border-radius: 999px;
  padding: 7px 10px;
  background: #f2f5f3;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
}

.status-pill.done {
  color: #0a5935;
  background: #dff2e7;
}

.history-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.history-cell {
  min-height: 58px;
  border-radius: 8px;
  padding: 9px 10px;
  background: #f8faf8;
  border: 1px solid var(--line);
}

.history-label {
  color: var(--muted);
  font-size: 0.77rem;
  font-weight: 900;
}

.history-value {
  margin-top: 4px;
  font-size: 0.86rem;
  line-height: 1.35;
}

.history-value.missing {
  color: var(--warning);
  font-weight: 900;
}

.side-panel {
  display: grid;
  gap: 12px;
}

.tool-panel {
  border-radius: 8px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
}

.tool-panel h2 {
  margin: 0 0 12px;
  font-size: 1rem;
}

.inline-form {
  display: grid;
  gap: 10px;
}

.mini-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.mini-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 42px;
  padding: 8px 10px;
  border-radius: 8px;
  background: #f8faf8;
  border: 1px solid var(--line);
}

.mini-row span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.mini-row small {
  color: var(--muted);
  white-space: nowrap;
}

.admin-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.9fr);
  gap: 16px;
  align-items: start;
}

.admin-task-list,
.request-list {
  display: grid;
  gap: 12px;
}

.admin-section h2 {
  font-size: 1.05rem;
}

.request-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8faf8;
}

.request-row h3 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.45;
}

.request-row p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.request-actions {
  display: flex;
  gap: 8px;
}

.compact-empty {
  min-height: 130px;
}

.empty-state {
  min-height: 260px;
  display: grid;
  place-items: center;
  border: 1px dashed #b9c8c1;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.62);
  color: var(--muted);
  text-align: center;
  padding: 22px;
}

.hidden {
  display: none !important;
}

@media (max-width: 880px) {
  .login-panel,
  .workspace-grid,
  .admin-grid {
    grid-template-columns: 1fr;
  }

  .login-card {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .summary-strip {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .app-shell {
    width: min(100% - 20px, 1180px);
    padding-top: 12px;
  }

  .login-layout {
    padding: 10px;
  }

  .login-main,
  .login-card {
    padding: 22px;
  }

  .tabs {
    grid-template-columns: 1fr;
  }

  .task-row {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 10px;
    padding: 10px;
  }

  .check-button {
    width: 64px;
  }

  .history-grid {
    grid-template-columns: 1fr;
  }

  .task-head,
  .request-row,
  .request-actions {
    flex-direction: column;
  }

  .request-row {
    grid-template-columns: 1fr;
  }

  .request-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}